diff --git a/megazords/ios-rust/MozillaTestServices/MozillaTestServicesTests/NimbusTests.swift b/megazords/ios-rust/MozillaTestServices/MozillaTestServicesTests/NimbusTests.swift
index 7afa000609..84b1cadbfa 100644
--- a/megazords/ios-rust/MozillaTestServices/MozillaTestServicesTests/NimbusTests.swift
+++ b/megazords/ios-rust/MozillaTestServices/MozillaTestServicesTests/NimbusTests.swift
@@ -10,8 +10,18 @@ import XCTest
 
 class NimbusTests: XCTestCase {
     override func setUp() {
+        // Due to recent changes in how upload enabled works, we need to register the custom
+        // Sync pings before they can collect data in tests, even here in Nimbus unfortunately.
+        // See https://bugzilla.mozilla.org/show_bug.cgi?id=1935001 for more info.
+        Glean.shared.registerPings(GleanMetrics.Pings.shared.sync)
+        Glean.shared.registerPings(GleanMetrics.Pings.shared.historySync)
+        Glean.shared.registerPings(GleanMetrics.Pings.shared.bookmarksSync)
+        Glean.shared.registerPings(GleanMetrics.Pings.shared.loginsSync)
+        Glean.shared.registerPings(GleanMetrics.Pings.shared.creditcardsSync)
+        Glean.shared.registerPings(GleanMetrics.Pings.shared.addressesSync)
+        Glean.shared.registerPings(GleanMetrics.Pings.shared.tabsSync)
+
         Glean.shared.resetGlean(clearStores: true)
-        Glean.shared.enableTestingMode()
     }
 
     func emptyExperimentJSON() -> String {
diff --git a/megazords/ios-rust/MozillaTestServices/MozillaTestServicesTests/SyncManagerTelemetryTests.swift b/megazords/ios-rust/MozillaTestServices/MozillaTestServicesTests/SyncManagerTelemetryTests.swift
index e4fa4f1ac1..22fa466f6e 100644
--- a/megazords/ios-rust/MozillaTestServices/MozillaTestServicesTests/SyncManagerTelemetryTests.swift
+++ b/megazords/ios-rust/MozillaTestServices/MozillaTestServicesTests/SyncManagerTelemetryTests.swift
@@ -14,7 +14,8 @@ class SyncManagerTelemetryTests: XCTestCase {
         super.setUp()
 
         // Due to recent changes in how upload enabled works, we need to register the custom
-        // Sync pings before they can be submitted properly.
+        // Sync pings before they can collect data in tests.
+        // See https://bugzilla.mozilla.org/show_bug.cgi?id=1935001 for more info.
         Glean.shared.registerPings(GleanMetrics.Pings.shared.sync)
         Glean.shared.registerPings(GleanMetrics.Pings.shared.historySync)
         Glean.shared.registerPings(GleanMetrics.Pings.shared.bookmarksSync)